1 Epidemic Intelligence Service, Center for Surveillance, Epidemiology and Laboratory Services, Centers for Disease Control and Prevention, Atlanta, Georgia, USA.
2 Bureau of Communicable Diseases, Division of Public Health, Wisconsin Department of Health Services, Madison, Wisconsin, USA.
3 Center for Preparedness and Response, Centers for Disease Control and Prevention, Atlanta, Georgia, USA.
4 Center for Global Health, Centers for Disease Control and Prevention , Atlanta, Georgia, USA.
5 INSERM, Université de Limoges, UMR_S 1094, Tropical Neuroepidemiology, Limoges, France.
6 University Hospital, French National Reference Center for Toxoplasmosis and Biological Resource Center for Toxoplasma, Limoges, France.
7 Infectious Disease Specialists of Southeast Wisconsin, Brookfield, Wisconsin, USA.
8 Jackson County Health and Human Services , Black River Falls, Wisconsin, USA.
9 United States Department of Agriculture, Agricultural Research Service, Animal Parasitic Diseases Lab, Beltsville, Maryland, USA.
10 Service de Parasitologie Mycologie, Centre Hospitalier Universitaire de Nice, INSERM, U1065, Centre Méditerranéen de Médecine Moléculaire, Faculté de Médecine, Virulence microbienne et signalisation inflammatoire - Université de la Côte d'Azur, Nice, France.
11 Center for Surveillance, Epidemiology and Laboratory Services, Centers for Disease Control and Prevention, Atlanta, Georgia, USA.
12 The Jack S. Remington Laboratory for Specialty Diagnostics, National Reference Center for the Study and Diagnosis of Toxoplasmosis, Palo Alto, California, USA.
13 Division of Infectious Diseases, University of Utah School of Medicine, Salt Lake City, Utah, USA.